Ferguson is born in Belfast on March 10, 1810. He lives at a number of addresses, including Glenwhirry, where he acquires the love of nature that informs his later work. He is educated at the Belfast Academy and the Belfast Academical Institution, and then moves to Dublin to study law at Trinity College, obtaining his bachelor’s degree in 1826 and his masters degree in 1832.

Because his father has exhausted the family property, Ferguson is forced to support himself through his student years. He turns to writing and is a regular contributor to Blackwood’s Magazine by the age of 22. He is called to the bar in 1838, but continues to write and publish, both in Blackwood’s and in the newly established Dublin University Magazine.

In addition to his poetry, Ferguson contributes a number of articles on topics of Irish interest to antiquarian journals. In 1863, he travels in Brittany, Ireland, Wales, England, and Scotland to study megaliths and other archaeological sites. These studies are important to his major antiquarian work, Ogham Inscriptions in Ireland, Wales and Scotland, which is edited after his death by his widow and published in 1887.

His collected poems, Lays of the Western Gael is published in 1865, resulting in the award of a degree LL.D. honoris causa from Trinity College. He writes many of his poems in both Irish and English translations. In 1867, Ferguson retires from the bar to take up the newly created post of Deputy Keeper of the Public Records in Ireland. As reward for his services, he receives a knighthood in 1878.

Ferguson’s major work, the long poem Congal is published in 1872 and a third volume, Poems, in 1880. In 1882, he is elected President of the Royal Irish Academy, an organisation dedicated to the advancement of science, literature, and antiquarian studies. His house in North Great George’s St., Dublin, is open to everyone interested in art, literature or music.

By 1647, The Irish Catholic Confederation controls all of Ireland except for Parliamentarian enclaves around Dublin and Cork and a Scottish outpost in Ulster. The previous year they had rejected a treaty with the English Royalists in favour of eliminating the remaining British forces in Ireland.

In August 1647, the Confederate Leinster army under Thomas Preston is attempting to take Dublin from the English Parliamentarian garrison under Michael Jones, when it is intercepted by the Roundheads and forced to give battle. Jones had marched to Trim to relieve the Parliamentarian outpost there at Trim Castle. Preston, who had been shadowing Jones’ movements, attempts to march on Dublin before Jones’ army returns there, but covers only 12 of the 40 miles before being caught at Dungan’s Hill, where the Confederate forces have to form up for battle.

From a Parliamentarian point of view, victory in this battle is presented to them by the incompetence of the Irish commander. Preston is a veteran of the Thirty Years’ War, where he had been a commander of the Spanish garrison at Leuven, but has no experience in open warfare or handling cavalry. Jones, by contrast, had been a cavalry officer in the English Civil War. As a result, Preston tries to move his cavalry along a narrow covered lane where they are trapped and subjected to enemy fire without being able to respond. Even worse, Preston has placed a large number of his troops in wheat fields over seven feet tall. As a result these troops are unable to see the Parliamentarians until it is too late. With the Confederate army spread out and in confusion, Jones’ troops fall in amongst them causing the demoralised Irish cavalry to flee the field, leaving the remainder of Preston’s infantry unsupported.

The Confederate army’s infantry are primarily equipped with pikes and heavy muskets and trained to stand in tercios in the Spanish manner. This means they are difficult to break, but also highly immobile, without cavalry to cover their cumbersome formation when it moves. What is worse, Preston has positioned them in a large walled field, so that when their cavalry has run away, the Parliamentarians can surround and trap them. Some of the Irish infantry, Scottish Highlanders brought to Ireland by Alasdair Mac Colla, manage to charge and break through Jones’ men and escape into a nearby bog, where the English cavalry could not follow. Preston and 2,000 to 3,000 of his regular infantry manage to follow the Highlanders to safety, but the remainder are trapped.

What happens next is disputed. The Irish infantry manages to hold off several assaults on their position, before trying to follow their comrades into the safety of the bog. This makes them lose their formation and the Parliamentarians get in amongst them and then surround them in the bogland. Parliamentarian accounts simply say that the Irish force is then destroyed. Irish accounts, however, claim that the Confederate troops surrender and are then massacred. One account, by a Catholic friar named O Meallain, says that the corpses of the Irish foot soldiers are found with their hands tied. A recent study suggests that the Irishmen probably tried to surrender, but that, according to the conventions of 17th century warfare, this had to be accepted before it entitled them to safety. In this case, it was not accepted and the infantrymen were butchered.

Around 3,000 Confederate troops and a small number of Parliamentarians die at Dungan’s Hill. One of the English regimental commanders, Colonel Anthony Hungerford, is shot in the mouth, a wound that invalids him out of the English Army. Most of the dead are Irish infantrymen killed in the last stage of the battle. Those prisoners who are taken are mainly officers, whom the Parliamentarians can either ransom or exchange for prisoners of their own. Richard Talbot, a junior cavalry officer but later Earl of Tyrconnell and Lord Deputy of Ireland, is among the Confederate prisoners.

In the immediate aftermath of the battle, Owen Roe O’Neill‘s Ulster Army marches through the pass of Portlester Mill to mount an effective rearguard action, routing Jones’ advanced brigade and enabling the survivors of the Leinster army to escape. Jones, fearing O’Neills army, does not continue the pursuit and returns to Dublin. O’Neill and his Ulstermen return four months later to bury the dead Confederates.

As of June 1900, the world record for the long jump is held by Myer Prinstein of Syracuse University, at 24′ 7-1/4″. In 1900 and 1901, competing with the Irish Amateur Athletic Association (IAAA), a rival association to the GAA, O’Connor sets several unofficial world records in the long jump. He sets an officially recognised world record of 24′ 9″ at the Royal Dublin Society’s grounds in Dublin on May 27, 1901. On August 5, 1901 he jumps 24′ 11-3/4″ in Dublin. This is the first IAAF-recognised long jump world record. It causes a sensation at the time, being only a fraction short of the 25-foot barrier, and remains unbeaten for 20 years, a longevity surpassed only by Jesse Owens‘s 25-year record and Bob Beamon‘s 23-year record. It remains an Irish record for a remarkable 89 years.

In 1906 O’Connor and two other athletes, Con Leahy and John Daly, are entered for the Intercalated Games in Athens by the IAAA and GAA, representing Ireland. However, the rules of the games are changed so that only athletes nominated by National Olympic Committees are eligible. Ireland does not have an Olympic Committee, and the British Olympic Council claims the three. On registering for the Games, O’Connor and his fellow athletes find that they are listed as Great Britain, not Irish, team members.

In the long jump competition, O’Connor finally meets Myer Prinstein of the Irish American Athletic Club who is competing for the U.S. team and whose world record O’Connor had broken five years previously. The only judge for the competition is Matthew Halpin, who is manager of the American team. O’Connor protests, fearing bias, but is overruled. He continues to protest Halpin’s decisions through the remainder of the competition. When the distances are announced at the end of the competition, Prinstein is declared the winner, with O’Connor in Silver Medal position.

At the flag-raising ceremony, in protest of the flying of the Union Flag for his second place, O’Connor scales a flagpole in the middle of the field and waves the Irish flag, while the pole is guarded by Con Leahy.

In the hop, step and jump competition two days later, O’Connor beats his fellow countryman, Con Leahy, to win the Gold Medal. At 34 he is the oldest ever Gold Medal winner in this event. Prinstein, the champion in 1900 and 1904, did not medal.

O’Connor wins no more titles after 1906. He remains involved in athletics all his life. He is a founder member and first Vice-President of Waterford Athletic Club, and attends later Olympics both as judge and spectator. He practises as a solicitor in Waterford and is married with nine children. He dies in Waterford on November 9, 1957.

Hamilton is the fourth of nine children born to Sarah Hutton (1780–1817) and Archibald Hamilton (1778–1819). He is part of a small but well-regarded school of mathematicians associated with Trinity College, Dublin, which he enters at age eighteen. He is said to have shown immense talent at a very early age. Astronomer Bishop Dr. John Brinkley remarks of the 18-year-old Hamilton, “This young man, I do not say will be, but is, the first mathematician of his age.”

Trinity College awards him two Optimes, or off-the-chart grades. He studies both classics and mathematics, and is appointed Professor of Astronomy just prior to his graduation. He then takes up residence at Dunsink Observatory where he spends the rest of his life.

Although Hamilton regards himself as a pure mathematician rather than a physicist, his work is of major importance to physics, particularly his reformulation of Newtonian mechanics, now called Hamiltonian mechanics. This work has proven central to the modern study of classical field theories such as electromagnetism, and to the development of quantum mechanics. In pure mathematics, he is best known as the inventor of quaternions.

Hamilton’s scientific career includes the study of geometrical optics, classical mechanics, adaptation of dynamic methods in optical systems, applying quaternion and vector methods to problems in mechanics and in geometry, development of theories of conjugate algebraic couple functions, solvability of polynomial equations and general quintic polynomial solvable by radicals, the analysis on Fluctuating Functions, linear operators on quaternions and proving a result for linear operators on the space of quaternions, which is a special case of the general theorem which today is known as the Cayley–Hamilton theorem. He also invents Icosian calculus, which he uses to investigate closed edge paths on a dodecahedron that visit each vertex exactly once.

Hamilton retains his faculties unimpaired to the very last, and steadily continues the task of finishing the Elements of Quaternions which occupies the last six years of his life. He dies on September 2, 1865, following a severe attack of gout precipitated by excessive drinking and overeating. He is buried in Mount Jerome Cemetery in Dublin.

O’Curry is born at Doonaha, near Carrigaholt, County Clare, the son of Eoghan Ó Comhraí, a farmer, and his wife Cáit. Eoghan has spent some time as a traveling peddler and has developed an interest in Irish folklore and music. Unusual for someone of his background, he is literate and is known to possess a number of Irish manuscripts. It is likely that Eoghan is primarily responsible for his son’s education.

During this period O’Curry is establishing a reputation for his knowledge of the Irish language and Irish history, and, by 1834, is in correspondence with the antiquary John O’Donovan. He is employed, from 1835 to 1842, on O’Donovan’s recommendation, in the topographical and historical section of Ordnance Survey Ireland. O’Donovan goes on to marry O’Curry’s sister-in-law, Mary Anne Broughton, in 1840. O’Curry spends much of the remainder of his life in Dublin and earns his living by translating and copying Irish manuscripts. The catalogue of Irish manuscripts in the British Museum (1849) is compiled by him for a fee of £100. He is responsible for the transcripts of Irish manuscripts from which O’Donovan edits the Annals of the Four Masters between 1848 and 1851.

O’Curry’s lectures are published by the university in 1860, and give a better knowledge of Irish medieval literature than can be obtained from any other one source. Three other volumes of lectures are published posthumously, under the title On the Manners and Customs of the Ancient Irish (1873). His voluminous transcripts, notably eight huge volumes of early Irish law, testify to his unremitting industry. The Celtic Society, of the council of which he is a member, publishes two of his translations of medieval tales.

Eugene O’Curry dies of a heart attack at his home in Dublin on July 30, 1862, and is survived by two sons and two daughters. He is buried at Glasnevin Cemetery in Dublin. O’Curry Road in the Tenters area of Dublin 8 is named in his honour.

Warren is born on March 10, 1703 in Warrenstown, County Meath, the youngest son of Michael Warren and Catherine Plunkett, née Aylmer, who was the first wife of Sir Nicholas Plunkett.

In 1716, when he is 13 years old, Warren signs on as an ordinary seaman in Dublin and he and his brother initially serve together. He rapidly rises in the ranks, becoming a Captain in 1727. His ship patrols American colonial waters to provide protection from French forces. He becomes involved in colonial politics and land speculation.

In 1744, Warren is made commodore and commands a 16-ship squadron off the Leeward Islands, capturing 24 ships in four months. In 1745, he commands a group of ships that support the Massachusetts forces in the capture of the Fortress of Louisbourg. The prize system of the time allows naval officers to profit from the capture of enemy ships, and this expedition earns Warren a fortune, a promotion to the rank of Rear Admiral of the Blue, and a knighthood.